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Médias (1)
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Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (96)
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Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs
Sur d’autres sites (9408)
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Révision 23619 : On nécessite PHP 5.4 minimum.
20 juin 2017, par marcimat@rezo.netNote : Debian 7 Wheezy est supportée avec PHP 5.4 jusque fin mai 2018…
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How to set PSNR value, also what is the minimum PSNR value which shows no visible artifact (no visible distortion)
20 août 2015, par mranaI have 2 issues to ask :
Q# 1. I have resized the video from 1920x1080 to 480:270 (good ratio 16:9) losslessly by the following command :ffmpeg -f rawvideo -pix_fmt yuv422p -s:v 1920x1080 -r 25 -i above_marathon_250.yuv -c:v libx264 -vf scale=480:270 -qp 0 above_marathon_250.mp4
Once i am trying to find the PSNR value using the following command :ffmpeg -f rawvideo -pix_fmt yuv422p -s:v 1920x1080 -r 25 -i above_marathon_250.yuv -i above_marathon_250.mp4 -lavfi psnr -f null -
I am getting the following problem : https://www.dropbox.com/s/h2djohk3d3q6uj6/Screen%20Shot%202015-08-20%20at%2018.43.24.png?dl=0Q# 2. What is the minimum value of PSNR for no visible artifact(no visible distortion), and how can i set it with the above command ?
Thanks so much.
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Revision 28933 : on bouge
31 mai 2009, par ben.spip@… — Logon bouge